Home / 7,946.31-11,919.54-2,399.70

Finding the Fourth Proportional to 7,946.31, 11,919.54 and 2,399.70

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Solution

The fourth proportional to 7,946.31, 11,919.54 and 2,399.70 is: 3,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.31 : 11,919.54 = 2,399.70 : x
  2. Step 2: Convert to fraction form
    7,946.31/11,919.54 = 2,399.70/x
  3. Step 3: Cross multiply
    7,946.31x = 11,919.54 × 2,399.70
  4. Step 4: Simplify right side
    7,946.31x = 28,603,320.14
  5. Step 5: Solve for x
    x = 28,603,320.14/7,946.31
  6. Step 6: Final answer
    x = 3,599.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.